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Automated planning of MRI neuro scans

机译：MRI神经扫描的自动规划

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In clinical MRI examinations, the geometry of diagnostic scans is defined in an initial planning phase. The operator plans the scan volumes (off-centre, angulation, field-of-view) with respect to patient anatomy in 'scout' images. Often multiple plans are required within a single examination, distracting attention from the patient waiting in the scanner. A novel and robust method is described for automated planning of neurological MRI scans, capable of handling strong shape deviations from healthy anatomy. The expert knowledge required to position scan geometries is learned from previous example plans, allowing site-specific styles to be readily taken into account. The proposed method first fits an anatomical model to the scout data, and then new scan geometries are positioned with respect to extracted landmarks. The accuracy of landmark extraction was measured to be comparable to the inter-observer variability, and automated plans are shown to be highly consistent with those created by expert operators using clinical data. The results of the presented evaluation demonstrate the robustness and applicability of the proposed approach, which has the potential to significantly improve clinical workflow.
机译：在临床MRI检查中，诊断扫描的几何形状在初始规划阶段定义。操作员计划在“侦察”图像中的患者解剖学方面的扫描卷（偏心，角度，视野）。通常在单一的检查中需要多种计划，从患者在扫描仪中分散注意力。描述了一种用于神经系统MRI扫描的自动规划的新颖和鲁棒方法，能够处理与健康解剖学的强大形状偏差。将扫描几何形状所需的专家知识从前面的示例计划中学到，允许容易地考虑特定于网站的样式。所提出的方法首先拟合到侦察数据的解剖模型，然后新的扫描几何形状相对于提取的地标。测量了地标提取的准确性，以与观察者间变异性相当，并且自动化计划被证明与使用临床数据的专家运营商创建的那些。所提出的评估结果表明了所提出的方法的稳健性和适用性，这有可能显着改善临床工作流程。

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